Pencil-pointer



W. E. ABBOTT.

PENCIL POINTER.

APPLICATION FILED MAY 29. 1919.

1,332,091, Patented Feb. 24,1920.

WITNESSES INVE/V TOR ATTORNEYS v elements which are adapted to bereadily in-.

ment and combination of parts hereinafter UNITED STATES PATENT OFFICEWILLIAM EDGAR ABBOTT,

or BEND, OREGON, ASSIGNOB or ONE-HALF '10 LEE A. THOMAS, 015 BEN-D,OREGON. V

V PENCIL-POINTER.

To allwhom it'mag "cmmn;

Be it known that I, WILLIAM EDGAR AB- Bo'r'r, a citizen of theUnitedStates, anda' resident of the city of 'Bend,"inthe county ofDeschutes and State of Oregon, have invented a new and ImprovedPencil-Pointer, of which the following is a full, clear, and exactdescription. V j Y b T hisinvention relates toarticles of stationeryandhas particular referenceto pencil pointers and paper weights.

. Among the objects of the invention is to provide an implement adaptedespecially for use by draftsmen. architects, engineers, or others whodesire to use pencils with long slender points and whi'chare required tobe repointed fromtime totime in order to keep the points slender and.sharp. 1

Another ob'ect f the invention is to pro vide an implement adaptedforthe-pointing of a pencilwith one hand only while the other hand may" beengaged in holding a ruler,.T-square,. or other devices. Conses que'ntlvthe implement is preferably made of sufficient weight not only for thepurposeofholding it in place while the pencll is being pointed with theuse ofone hand only but it also adapts it for use as a 'paper .weight. pH A further object of the invention 1s to provide a special constructionof abrasive terchanged or 'adjustedafterthey have become worn and nolonger functional.

NVith theforeg'oing and other objects in view the'invention consists inthe arrange.-

described and 'claimed, and while the invention isnot restricted to theexact details of construction disclosed or. suggested herein,

.3 still forthe purpose of illustrating apractical embodiment thereofreference is {had to the accompanying drawings in which like referencecharacters designate the same parts in the several views, and in which IFigure 1 is a vertical longitudinal section on the line 11 of Fig. 2.

' Fig.2 is a plan view.

Fig. 3 is an end view. Fig. 4 is avertical transverse section on theline44 of Fig. 1; and Fig 5 isan enlarged longitudinalsection of theactuator and parts associated'therewith. p 1

Referring now -more specifically to the Specification of Letters Patent.Patented Feb. 24, 1920;; i Application filed May 29, 1919. Serial No.300,498. it I i drawings I show myimproveddevice as comprising asubstantially hollow -rectangularbody or casing having a bottom 10,vertical parallel ends 11, and side walls 12 which ar'e vertical exceptat their upper ends where they are'deflected inward toward each other at12. Each end wallis provided with a vertical central slot'13 on oppositesides of whichv the end wall extends upward forming are shaped lobes orprojections 14 and 15. The deflected portions'12' of the sidesmerge intoand constitute integral parts of the lobes 14 and 15" making a verystrong rigid structure with a minimum weight of material which may beof-any suitable character such as sheet metal or its equivalent. The twoends of the device are similar or'sylnmetrical throughout so that aspecific description of either end will be undeastood' as beingapplicable to the other The lobe 14'is provided with a short horizo'ntalslot 16 the center of which is concentrio with the curved portion of thelobe, and

ledge 18 having two concave end portions each concentric with the pintleor slot. This ledge maybe formed as an integral part of the wall or itmay be fastened thereto in any suitable manner.

19 indicates twocylindri'cal rollers made preferably exactly alike andinterchange able. These; rollers may be *made of any suitableabrasivematerial or of any other kind of material faced of coated withsandpaper, carborundum, or other abrasive substance. In one end of a"roller 1s-formed a round bearing 20 adapted to receive the pintle 17while the other end of the roller isprovided with-a square or. th nal'socket 21. I v 1 I e g W h the polygonal socket 21 connection with thesocket and adjacent to which is" around portion 23 Then comes a,

V is an actuator 22 comprising a gudgeon 23 having'a polygonal end '23having direct vwall and so retain the polygonal end '23 in the socket 21andthe round portion 23 of the gudgeon in the slot 16. The hole 27 inwhich the gudgeon is journaled in the upper I end of the spring issmooth and consequently the actuator may be rotated directly at any.time to rotate'either roller and in 1 fact the rotation. of eitherroller will ordinarily rotate both because of the frictional enga ementbetween the two rollers. j I

- W ile one end of the rollerv is held from lateral movement by thejournaling-of-the I pintle '17 in the round hole 20, the other end isadapted to move freely within a certain limit away from the otherrolleragainst the forceof a spring shown as a coil spring 28 anchored at oneend at 29 within the casing adjacent to the remoteside Wall 12, whilethe other end of the spring is connected to a lug, loop, or other device30 extending inward from the spring through a slot 31. This spring iscontractile and tends to hold the connected end of the roller againstthe other. roller. Since each roller is'provided with a spring'servingto hold one end of the roller resilientlv againstthe adjacent end of theotherroller which'is relatively immovable laterally itrnay be statedthat both rollers are movable toward and from each other. The line ofcontact between the two rollers lies in a'vertical plane tan gent toboth of them andcoincident with the i slots 13formed in the end walls11, In inserting the rollers each ofthem is first introducedwith itsendhaving the round hole intoplace receiving the pintle 17 and then theother end is dropped into place until; it

' rests upon the ledge 18.. the actuator being withdrawn against theforce ofthe spring for this purpose and after the roller is in place thepolygonal end of the trunnion of t e: actuator springs into the socket21.

Thus the roller is locked in place and held from .accidental removal.The spring 25 holds the trunnion in its socket. and the sprin 28acts'constantlv t draw Spring 25 and actuator toward the'adiacent rollerso that by these means both rollers are held in close contact with eachother resiliently.

In the usevof the implement inthe pointing of a pencil. the baredoriexnosed point of 'the pencil is thrust down, between the rollersatany su table an 'le sav forexample 45 decrees and the the draftsman willdraw thepe cilalong-fhe slot or ioint betwe n the rollersin aIdirection, awav from the point. giving it a turn orspin between. his

ing used with one hand. only.

Theinterior of the casing may be filled to thumb and fingers in sodoing. Thus the abrasive rollers will reduce the lead of the pencilpoint to the desired size and at the same time the point will besuitably sharpened uniformly and symmetrically. The

between the rollers tlie'more the lead will be thinned remote from theextremepoint. The rollers may or may not rotate during this pointing ofthe pencil. Ordinarily however they will not rotatethere beingarelativelyv slight amount of forceapplied to them to cause suchrotation. When the 'engaging portions of therollers-become foul or wornbecause of the sharpening or=p0int5 ing action thereon either or'both ofthem may be rotated by grasping and. turning either of the inilled knobs24, thus. presentdeeper the pencil point isthrustidownward ingfreshcontact surfacesfor further use.

When the rollers become worn or foul and needreplacing they areeasilyreinoved bysimply withdrawing the gudgeon 23 from.

the end having the socket 21 permitting the, rollers to be lifted outand others put in their places. The rollers obviouslymay be manufacturedand sold as cheap articles of manufacture independent of the casing orapparatus as a whole.

.' The bottom 10iofthe casing may be faced,

with a layer of felt, rubber, or other-device indicatedat 32, to preventthe marring of the deskas well as to reduce the likelihood of theslipping of the device when it ijsfbe any desired elevation-with'l'ad 33or other heavy material so as to serve to hold the'de-.

vice in place in connection with the fricadapt the ims; i

tional surface 32 and to better plem t s a paper Weight.

1. In a device combination ofia 'hollow casing having parallel end wallseach terminating at its: free edge in a pair of lobes, one lobe having aslot formed in its center parallel tothebottornpf thecasing, a pintlefitted in the other lobe at the same distance fromthebottom of the ofthe class set forth, the:

casing as said slot. a pair of abrasive cylin:

ders, one iournaled upon said pintleand' the 11$ other having apolygonal so ket registering with the slot, an actuator projecting thro1 1gliv the slot and into the socket tocontrol the posit ion androtation of the cylinder, andresil ent meansv acting. to hold therollers in closecontact with each other.

- 2. Ins-a pencilpointenthe combination of .a support, a-pair ofabrasivefmembers'sup ported in close contact witheachother in saidsupport, one of said membersbeing a cylinder and said members beingmovable relativelytoward and from each. other, a

gudgeon .fitted'removably in oneend of the cylinder, means torotate thegudgeonand I cylinder, a spring member tending to hold the gudgeon frommovement endwise from the cylinder, another spring member acting uponthe first mentioned spring member to hold the adjacent end of thecylinder against the other abrasive member, and means to prevent thecylinder from dropping down when the gudgeon is withdrawn therefrom.

3. In a pencil pointer,'the combination of a pair of abrasive members,means to support said members for rotation, means to resiliently holdthe members in close contact with each other permitting relativemovement be.- tween them, means to rotate either of the members andthereby cause the rotation of the other member, said rotating meansincluding a gudgeon having a polygonal end fitted removably into asimilarly shaped socket in the member, a leaf spring acting upon thegudgeon to hold it from endwise movement from the socket, and a springattached to the leaf spring and acting thereon in a direction at rightangles to the actlon of v the leaf spring and tending to hold thegudgeon and its abrasive member in close contact with the other abrasivemember.

4-. In a device of the class set forth, the combination of a hollowcasing having ver-' tical end walls each terminating at its upper edgein a pair of lobes, one lobe having a horizontal slot formed in'itscenter of curvature, a pintlefitted in the center of theother lobe onthe same level as the :slot, a ledge formed on the inner surface of saidwall be, low and concentric to the slot and pintle, a

pair of abrasive cylinders, one fitted upon said pintle and the otherhaving a polygonal socket registering with the slot, an actuatorprojecting through the slot and into the 7 socket to control theposition and rotation of the cylinder, and resilient means acting tohold the cylinders in close contact with each other.

5. In a pencil pointer, the combination of a support, a pair of abrasivecylinders supported in close contact with each'other in the upperportion of the support, one end of each'cylinder being heldfrom lateralmove-' and means to prevent the dropping down of either cylinderrwhenthe gudgeon is Withdrawn therefrom.

6. The herein described pencil pointer,

comprisingtwo cooperating abrasive members movable toward and from eachother 7 and supporting and actuatingmeans for said members including agudgeon .projectable into the end of one of the members and withdrawabletherefrom for removing the member, a leaf spring cooperating with thegudv geonand serving to hold it in engagement with the member, a pivotsupport for the op- ,posite end of the leaf spring from the gud geon,and a coil spring having one end attached to the leaf spring and theother end attached to a fixed point beneath theother V abrasive member,said -coil spring actingto swing the leaf springandgudgeon around theleaf spring pivot and toward the other abrasive member, substantially asset forth.

WM. EDGAR ABBOTT.

